Fluid pump



Aug. 26, 1969 R.v E.. GORDINIER FLUID PUMP Filed Dec. 15, 1967 2 Sheets-Shet 1 y INVENTOR mmm Gomme@ ATTORNEY Aug. 26, 1969 R. E. GoRnlNlER FLUI D PUMP 2 Sheets-Sheet 2 Filed Dec. l5, 1967 FIG. 6

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ATTORNEY lUnited States Patent O 3,463,090 FLUID PUMP Ralph E. Gordinier, Newark, NJ., assignor to Eco Pump Corporation, Newark, NJ., a corporation of New Jersey Filed Dec. 15, 1967, Ser. No. 690,864 Int. Cl. F04c 1/02 U.S. Cl. 103-130 9 Claims ABSTRACT OF THE DISCLOSURE It is an object of the invention to provide a dual impeller pump having a chamber above the impellers divided -by a vane guide into sections, the vane guide supporting vanes having contact with the periphery of the impellers and means for conducting lluid pressure from the exhaust section of the chamber to the upper ends of the vanes to exert a downward pressure on the vanes.

A further object of the invention resides in providing a follower above the upper ends of the vanes for directing the llow of uid under pressure into contact with the upper ends of the vanes.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specication:

FIG. 1 is a perspective view of the pump,

FIG. 2 is a partial exploded perspective view of the same,

FIG. 3 is a section taken on lines 3-3 of FIG. l,

FIG. 4 is a section taken on lines 4-4 of FIG. 1,

FIG. 5 is a section taken on lines 5-5 of FIG. 4, and,

FIG. 6 is a section taken on lines 6--6 of FIG 4.

Referring to the drawings, the numeral 5 denotes the pump housing formed of a front and rear section 6 and 7 joined together by |bolts 8. Each section is provided with a circular recess 9 having communication with a chamber 10 above the recess. The chamber 10 is provided with inlet and outlet openings 11 and 12 to allow -fluid to enter and -be discharged from the chamber. A shaft 13 extends axially through recess 9 having one end journaled in the wall of housing section 7 and the other end projecting through the wall housing section 6 for connection with a motor or other suitable driving means. An eccentric 14 is mounted on the shaft 13 in the recess 9 of each section of the housing and loosely mounted on each eccentric is an impeller rotor 15 of smaller diameter than the recess 9. The eccentrics are arranged 180 degrees out-of-phase with each other and upon rotation of the shaft 13 a gyratory motion is imparted to the impeller rotor. A separator disc 16 is mounted on shaft 13 between the rotors 15 and is surrounded by a Teflon O-ring 17.

A vane guide 18 extends longitudinally of the housing above the impeller rotors 15 having a rounded upper edge for seating in the recess 19 formed in the top wall 3,463,090 Patented Aug. 26, 1969 ice of the chamber 10. The guide 18 has a longitudinal vertical slot 20 divided intermediate its length by a vertical rib 21 which terminates short of the top of the guide. A sliding vane 22 is loosely mounted in each end of the slot 20 with the lower edge of the vanes in contact with the periphery of the impeller rotors 15. The rib 21 on opposite sides of the guide has transverse passages 23 and 24 in communication with a vertical passage 25 opening into the slot 20. The passages 23 and 24 are provided with a shoulder 26 and 27 forming a seat for a ball valve 28 which is freely movable in the passages 23 and 24. A vane follower 29 is disposed in the slot 20 above the vertical passage 25. The follower is V-shape with its ends inclined downwardly into sliding contact with the upper edges of the vanes 22.

In operation, upon rotation of the impeller rotors 15 a suction is created in the chamber 10 on one side of the vane guide 18 while the fluid is being discharged from the chamber on the other side of the vane guide. The pressure of the iluid in the discharge side of the chamber moves the ball valve Z8 to open one of the passages 23 or 24 so fluid under pressure can ow into the passage 25 and be directed by the vane follower 29 to exert a downward pressure on the upper ends of the vanes 22. Thus, it is seen the vanes are under a constant pressure of fluid so the lower end of the vanes are held in lirm contact with the periphery of the impeller rotors. As shown in FIG. 5, the pressure of fluid against the lower end of the vane will allow the vane to assume a slanting position but the pressure of lluid on the upper end of the vane will establish a seal between the vane and walls of the slot so there is a constant downward pressure on the vanes. It is apparent the vane follower may be eliminated and the fluid pressure would still exert a downward pressure on the vanes.

Having thus described my invention, I claim:

1. A lfluid pump comprising a housing, dual impeller rotors mounted in said housing for gyratory motion, a chamber above said impeller rotors having intake and exhaust ports, a vane guide in said chamber above said impeller rotors, vanes slidably mounted in said guide having their lower ends in contact with the periphery of said impeller rotors, a passage through said Vane guide for conducting llluid pressure to the upper ends of said vanes and a valve in said passage to control the passage of fluid pressure.

2. A lluid pump as described in claim 1 wherein said passage extends transversely through said vane guide with a branch passage intermediate its ends extending upwardly above the upper ends of said vanes.

3. A fluid pump as described in claim 2 including a ball valve in said passage movable to close opposite ends of said passage.

4. A uid pump as described in claim 1 including a vane follower bridging the upper ends of said vanes above the discharge end of said passage.

5. A uid pump as described in claim 4 wherein said follower is V-shape with its ends inclined downwardly into contact with the upper ends of said vanes.

6. A fluid pump as described in claim 2 including a vane follower disposed above the discharge end of the branch passage having downwardly inclined ends in contact with the upper ends of said vanes.

7. A iluid pump as described in claim 6 including a ball valve movable in said passage to close opposite ends of said passage.

3,463,090 3 4 8. A fluid pump as described in claim 1 wherein said References Cited vane guide has a longitudinal slot divided intermediate its UNITED STATES PATENTS ends by a vertical rib terminating short of the upper end he rib and. Opening into Said. Slot', DONLEY J. STOCKING, Primary Examiner 9. A Huid pump as descrlbed 1n claim 8 including a vane follower disposed in said slot above said branch pas- 10 W J' GOODLIN Assistant Examiner sage having its ends in Contact with the upper ends of U.S. C1. X.R. said vanes. 103-4; 230-158 

